Improvement in spark-arresters



UNITED STATES SAMUEL swETT, JR.,

PATENT EETCE.

OFY NEW YORK, N. Y.

IMPROVEMENT IN SPARK-A'RRESTERS.

. To @ZZ whom, it may concern.:

Be it known that I, SAMUEL SWETT, Jr., of the city and county of New York, and State of New York, have invented a new and useful improvement in Spark-Arresters for Locomotives, Steamboats, &c., which is described as follows, reference being had to the annexed drawings of the saine, making part of this specication.

Figure 1 is a vertical transverse section through the center of the sparkarrester. Fig. 2 is a vertical longitudinal section of the same.

This invention and improvement consist in surrounding the ordinary smokepipe, A, of the locomotive or other engine with an inverted funnelshaped case, B, leading into the bottom of a drum, O, whose ends are closed with reticulated wire D for arresting the sparks, the sum ofthe areas ofthe meshes of which (through which the smoke passes) being equal to the area of the smoke-pipe A, through which it passes from the fire-box to the drum. The sparks when thus arrested by the wire-cloth D fall down into a space, E, between the smokepipe and case, from whence they are removed through a door, F, in the case; or the sparks may be conducted into a receiver containing water, or into the ash-box, or into any convenient place.

The drum O is made in the form of a cylinder whose axis'is horizontal, having an opening, G, in its circumference near the smoke pipe A, through which the sparks descend into the space E after being whirled round in the drum C, the circumference of the interior of the drum giving them their downward direction through the aforesaid opening G in the direction indicated by the arrows.

What I claim as my invention, and which I desire to secure by Letters Patent, is-

lThe combination of the drum C and case B with the smoke-pipe A, constructed and arranged and operating in the manner and for the purpose set forth, or other mode substantially the same for producing analogous results.

SAMUEL SWETT, JR. Witnesses:

EDM. MATTER,

THOMAS C. THEAKER. 

